51 cases (17%) of cilio-choroidal detachment were associated with rhegmatogenic retinal detachment in a series of 305 cases of the latter. The prominent feature in these cases was extraordinary hypotony, which was an important factor in pathogenesis of the transudative ciliochoroidal detachment. Among the 46 cases that underwent surgical operation, the rate of successful retinal reattachment was 70% (32/46) after a follow-up of 26 months. The good results were believed to have been due to early diagnosis, high dosage topical and systemic steroid therapy, intensive mydriasis, and performance of the retinal surgery as soon as the severe uveitis became alleviated.